US6175868B1 - Method and apparatus for automatically configuring a network switch - Google Patents

Method and apparatus for automatically configuring a network switch Download PDF

Info

Publication number
US6175868B1
US6175868B1 US09079890 US7989098A US6175868B1 US 6175868 B1 US6175868 B1 US 6175868B1 US 09079890 US09079890 US 09079890 US 7989098 A US7989098 A US 7989098A US 6175868 B1 US6175868 B1 US 6175868B1
Authority
US
Grant status
Grant
Patent type
Prior art keywords
network
data
switch
maintenance
java
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US09079890
Inventor
Tal I. Lavian
Stephen Lau
Lyndon Y. Ong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avaya Inc
Original Assignee
Nortel Networks Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic regulation in packet switching networks
    • H04L47/10Flow control or congestion control
    • H04L47/24Flow control or congestion control depending on the type of traffic, e.g. priority or quality of service [QoS]
    • H04L47/2425Service specification, e.g. SLA
    • H04L47/2433Allocation of priorities to traffic types
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/08Configuration management of network or network elements
    • H04L41/0803Configuration setting of network or network elements
    • H04L41/0813Changing of configuration
    • H04L41/0816Changing of configuration due to adaptation, e.g. in response to network events
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/08Configuration management of network or network elements
    • H04L41/0876Aspects of the degree of configuration automation
    • H04L41/0886Fully automatic configuration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing packet switching networks
    • H04L43/16Arrangements for monitoring or testing packet switching networks using threshold monitoring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic regulation in packet switching networks
    • H04L47/10Flow control or congestion control
    • H04L47/11Congestion identification
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic regulation in packet switching networks
    • H04L47/10Flow control or congestion control
    • H04L47/29Using a combination of thresholds
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Application specific switches
    • H04L49/354Support for virtual LAN, VLAN tagging or multiple registration, e.g. according to IEEE 802.1q
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/65Fast packet switch re-configuration

Abstract

A method and apparatus for automatically configuring a network switch having external network data ports, a processor, and memory. Network data is monitored on the external network data port. Information about the network data traffic is compared to one or more threshold conditions. The network switch is automatically configured if the network data meets one of the threshold conditions. The monitor and configuration functions can be performed by software running on the processor which has been downloaded from an external network maintenance station through a maintenance data port. Information about the network data traffic can be uploaded to the external network maintenance station through a maintenance data port.

Description

FIELD OF THE INVENTION

This invention relates generally to data communications networks, and more particularly, to a method and apparatus for automatically configuring a network switch.

BACKGROUND OF THE INVENTION

Computer networks are used to interconnect many computing resources, including computers, workstations, servers, printers, modems, and storage devices. For example, two or more computers may be connected together through a network. Network users are able to share files, printers and other resources, send messages and run applications on remote computers. An important part of any computer network includes the physical components or network communications devices used to interconnect the computing resources.

One network communications device used to interconnect multiple computing resources is a chassis-based system designed to accommodate a number of internal cards. The computing resources such as computers are coupled to the internal cards of the chassis-based system. Once the computers are coupled to the internal cards, the computers are coupled to the network. To accommodate network growth, additional internal cards may be purchased and added to the chassis-based system. With the additional internal cards installed, additional computing resources may be added to the network. A disadvantage of these chassis-based systems is that there is a relatively large initial investment when purchasing the chassis because of the large amount of overhead associated with chassis-based systems.

An alternative to expensive chassis-based systems is the use of less expensive standalone network communications devices or units that have a fixed number of ports for connecting computing resources or stations to the network. Such standalone network communications devices include stackable switches or the like. Although additional ports can not be added to each individual standalone unit, separate standalone units can be stacked, cascaded or coupled to accommodate network growth. As a result, there is a lower startup cost when establishing a computer network with the standalone units in comparison with chassis-based systems. Furthermore, network administrators still have the flexibility to increase the size of the network with the less-expensive standalone units.

FIG. 1 illustrates multiple network communications devices 103, 105, 107, 109 and 111 coupled together to form a computer network 101. Multiple computing resources (not shown) are coupled to each network communications device 103, 105, 107, 109 and 111. In one embodiment, network communications devices 103, 105, 107, 109 and 111 are stackable switches coupled together through bus 113. Bus 113 is used to tie together the switch network fabric of computer network 101. It are noted by one of ordinary skill in the art that the utilization of bus 113 is an extension of the chassis-based designs discussed earlier. The internal cards of the chassis-based systems are commonly coupled to high speed buses within the chassis-based systems.

The use of stackable switches allows network administrators to build systems having multiple physical ports to various computing resources on the network. Different types of network use patterns may typically be handled most efficiently by different configurations of a network switch. Currently, a network administrator must manually monitor and analyze network traffic patterns, and also manually make any changes to the configuration of a network switch through the use of an external network maintenance station (NMS). Although some network switches may have data gathering and reporting capabilities, a network administrator must still take a considerable amount of time to analyze the network traffic pattern and manually reconfigure the switch. Delays in rerouting network traffic are directly related to the time required to analyze network traffic and reconfigure a network switch by a network administrator.

Therefore, there is a need for a way to automatically monitor and configure a network switch according to changes in network traffic. There is a further need to automatically configure a network switch which does not reduce the flow of data through the switch.

SUMMARY OF THE INVENTION

The present invention provides a method and apparatus for automatically configuring a network switch having external network data ports, a processor, and memory. Network data is monitored on the external network data port. Information about the network data traffic is compared to one or more threshold conditions. The network switch is automatically configured if the network data meets one of the threshold conditions. The monitor and configuration functions can be performed by software running on the processor which has been downloaded from an external network maintenance station through a maintenance data port. Information about the network data traffic can be uploaded to the external network maintenance station through a maintenance data port.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is illustrated by way of example and may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like references indicate similar elements and in which:

FIG. 1 shows a computer network coupled together with a bus architecture compatible with the present invention;

FIG. 2A-2F show alternative network switch configurations compatible with the present invention;

FIG. 3 shows a block diagram of a high level system architecture compatible with the present invention;

FIG. 4 shows a block diagram of a system architecture and protocol relationships compatible with the present invention;

FIG. 5 shows a block diagram of downloading intelligent agents compatible with the present invention;

FIG. 6 shows a block diagram of a Java application environment compatible with the present invention;

FIG. 7 shows a block diagram of an open system architecture compatible with the present invention;

FIG. 8 shows an auto-configuring network switch compatible with the present invention;

FIG. 9 shows a network switch with coprocessor compatible with the present invention;

FIG. 10 shows a system diagram of Java mobile agents compatible with the present invention.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE PRESENT INVENTION

In the following description of a preferred embodiment, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration a specific embodiment in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention.

The present invention provides for a method and apparatus for automatically configuring a network switch having external network data ports, a processor, and memory. Network data is monitored on the external network data port. Information about the network data traffic is compared to one or more threshold conditions. The network switch is automatically configured if the network data meets one of the threshold conditions. The monitor and configuration functions can be performed by software running on the processor which has been downloaded from an external network maintenance station through a maintenance data port. Information about the network data traffic can be uploaded to the external network maintenance station through a maintenance data port.

For the purpose of illustration, one embodiment of present invention is described below in the context of a Java virtual machine in a Java development environment. Information and specifications relating to the Java development environment are described in the document “Java Virtual Machine Specification”, October, 1997, Sun Microsystems. It will be recognized by one of ordinary skill in the art that the present invention may be used with other development environments without loss of generality, such as Microsoft Visual C/C++.

Java is a programming language similar to the object-oriented language C++, and consists of runtime libraries. These libraries provide a standard set of facilities for manipulating the user interface, communicating across a network, etc. Two Java runtime libraries, remote method invocation (RMI) and and Java native interface (JNI) allow a single application to run on multiple hardware platforms without modification.

Java preferably isolates applications from both hardware and operating systems. Unlike traditional computer programs, which are almost always compiled for a hardware platform using tools that preclude their running on anything else, Java applications can be designed to run on any system that has a Java Virtual Machine (VM), also known as a Java Runtime Engine. The VM takes Java byte code and transforms it on the fly into instructions that can be executed by the PC. The same byte code can be interpreted as hardware-level instructions for any other platform with a VM implementation.

Java can be used to create two types of programs: applications and applets. Java applications, like those written in other languages, are standalone programs. They require a VM to run, but this runtime environment may be separate, embedded in the OS or in the application itself. Applets rely on a Web browser with a VM (such as Microsoft Internet Explorer or Netscape Communicator). Since applets are designed to be downloaded, they are also typically much smaller than applications.

In addition to platform independence, Java applications offer several other advantages. First, Java was designed for network computing and makes hiding the differences between local and remote resources easy. This allows Java to be used with thin-client computing, in which most of the processing and storage is handled by a server, while the client is used largely for display and interaction. Typical thin clients include network computers (NCs), which are low-cost personal computers typically connected to a private or public network. Second, the Java programming language has a rigorous object-oriented model that makes it possible to build modular applications. An end user need only download a particular feature of a Java word processor when needed, for example. This dynamic design also lets developers create custom desktop environments that display only those applications required by each end user.

The Java platform or runtime environment is the platform that enables Java applications and applets to run on any system regardless of the operating system and underlying hardware. Rather than compiling code into a format designed for a specific platform, developers compile Java source code into an intermediate form, bytecode, which can be executed on any system with a runtime environment. A Class Loader transfers the Java bytecode to the Java Virtual Machine (JVM). As the heart of the Java platform, the JVM is basically a software CPU that sits between applications and the platform consisting of the operating system and hardware. The JVM interprets bytecode for the platform or uses a just-in-time (JIT) compiler to convert the bytecode to machine code for that specific platform. Java class libraries, which are files that make up the standard application programming interface (API) for applications and applets, are also loaded dynamically as needed.

The runtime system, which manages threads, memory, and other system resources, preferably executes the interpreted or machine code on the end platform. The program may be run within a browser as an applet, or as a standalone application.

JavaBeans are reusable building blocks that make up object-oriented Java programs. JavaBeans are defined by an API specification for a visual component architecture based on the Java language. Preferably, any Java components conforming to the JavaBeans component model can be reused in any other JavaBean-compliant application.

The present invention is used to configure a network switch or other apparatus having a processor and memory which can be modified through software. FIGS. 2A-2F show alternative network switch configurations typically chosen by a network administrator, and which may be automatically configured by the present invention. FIG. 2A shows a L2 switch configuration; FIG. 2B shows a configuration which routes or switches on any port; FIG. 2C shows a configuration which routes on all ports; FIG. 2D shows a configuration which creates virtual local area networks (VLANs) by policy or port; FIG. 2E shows a configuration which routes between VLANs with simple software configurations; FIG. 2F shows a configuration which demonstrates arbitrary network routing and switching. It will be recognized by one of ordinary skill in the art that configurations shown in FIGS. 2A-2F are for illustration purposes only, and that other configurations may be implemented with the present invention without loss of generality. Different applications or users may be assigned different priorities. For example, high level network applications such as real-time network monitoring and two-way voice and video may be given a low priority, equivalent to that of non-critical email or internet browsing. Alternatively, an important user such as a corporate CEO may be given a higher network priority than other employees.

FIG. 3 shows a block diagram of a high level system architecture compatible with the present invention. A network maintenance station (NMS) 301 may be coupled to a network routing switch 305 via a maintenance data port on the network switch 305. A preferred personal computer 303 running browser software may optionally communicate with both the NMS 301 and network switch 305. Network monitor software 311 may preferably be downloaded from the NMS 301 to a processor in the network switch 305 for monitoring network data traffic. The monitor software 311 is downloaded through a control data channel, preferably through the maintenance data port on the network switch 305, and not as network traffic being routed through the network switch 305. The use of a control channel preferably does not impact the flow of network traffic through the network switch 305. Once the network monitor software 311 has been downloaded to the network switch 305, events and information 315 relating to network traffic can be uploaded to either the NMS 301 or an applications server 307. Analysis of the network events 315 may be performed either by the processor on the network switch 305 or by the NMS 301 or applications server 307. Analysis of the network events 315 preferably involves monitoring the events 315 to see if they meet one or more of a set of predefined threshold conditions. If so, network configuration software 313 can be downloaded either from the NMS 301 or applications server 307 in reconfigure the network switch 305. An authentication server 309 may optionally be used to authenticate data and actions taking place on the network switch 305.

FIG. 4 shows a preferred system architecture and protocol. Browser software 401 may preferably communicate with a network switch 403 through a variety of protocols, including HyperText Transfer Protocol (HTTP) 405, and may also exchange software applets 407 with the switch 403. Optivity software may preferably communicate with the switch 403 through Simple Network Management Protocol (SNMP) 411 or through distributed optivity applications or oplets 409. An application server 415 may preferably communicate with the switch 403 through Remote Method Invocation (RMI) 421 or Java Beans 423.

FIG. 5 shows a preferred method of downloading intelligent agents. A network switch or routing device 501 contains a physical hardware layer 503, preferably including a processor and memory. An operating system 505 runs as a software application on top of the hardware layer 503. An implementation of a JVM 507 and internet protocol (IP) stack 509 runs on top of the operating system layer 505. A download channel 513, typically a maintenance data port, is used to download an intelligent agent 511 to the network switch 501. The intelligent agent 511 typically performs one or more functions, including but not limited to security 515, authentication of information 517, monitoring network data traffic 519, or automatically configuring 521 the network switch 501.

FIG. 6 shows a preferred Java application environment. A Java virtual machine 601 may run on top of a number of operating systems, including but not limited to JavaOS 603, Windows NT 605, Solaris 607, RT-OS 609, or others 611. System functions such as networking 613, utilities 615, programming languages 617, input/output (I/O) 619, and abstract window toolkit (AWT) 621 are all supported by the JVM 601. A network switch (API) 623 and network switch libraries 625 are used to support end user applications 627 or third party applications 629 running on the network switch.

FIG. 7 shows a preferred open system architecture compatible with the present invention. A network switch 701 includes a hardware layer 703, operating system 705, and a JVM 707. Java software libraries 709 and a data communications API 711 preferably run on top of the JVM 707. A download or control channel 715 is used to download applications programs including Java Beans 713, which communicate with the device 721 through a Java API 717 and a C/C++ API 719.

FIG. 8 shows an auto-configuring network switch compatible with the present invention. A network switch 801 communicates with a NMS 803 through a download channel 807. Monitor software 805 may be downloaded from the NMS 803 through the download channel 807. If a network event or information meets a threshold condition 809, network information may be optionally uploaded 811 to the NMS 803. An appropriate application 815 may be downloaded 813 from the NMS 803 in response to the uploaded network information.

FIG. 9 shows a network switch 901 with coprocessor 909 compatible with the present invention. In order not to impact the throughput of data on the network, configuration information is preferably sent through a maintenance port or control channel 913 rather than through the network switch data channel 903, 905. In addition, a coprocessor 909 is preferably used to run monitor and configuration software stored in memory 907 in order not to impact the flow of data through network ports 903 and processor 905. A data bus 911, preferably a PCI data bus, is used to transfer information between the processor 905, memory 907, coprocessor 909, and the maintenance data port 913. It will be recognized by one of ordinary skill in the art that changes may be made in the connections between and the types of processor, memory, and network components without loss of generality. For example, the memory may alternatively be connected directly to both the processor and coprocessor, or a data bus other than a PCI data bus, such as an ISA data bus, used to transfer information internally within the network switch 901.

FIG. 10 shows a system diagram of Java mobile agents compatible with the present invention. A network 1001 containing optivity software running on a NMS 1003 communicates via Java mobile agents 1004 with a file server 1005, which in turn may communicate via transferred agents 1006 with a network switch 1007. The network switch 1007 may use transferred agents 1008 to communicate with another file server 1009, which uses transferred agents 1010 to communicate with a public network 1013 such as the internet via gateway 1011. Finally, the transferred agents 1012 may be used to communicate with the NMS 1003.

While the invention is described in terms of preferred embodiments in a specific system environment, those of ordinary skill in the art will recognize that the invention can be practiced, with modification, in other and different hardware and software environments within the spirit and scope of the appended claims.

Claims (15)

What is claimed is:
1. A network apparatus comprising:
an external network data port;
a network data monitor to monitor network data traffic over the external network data port, the network data monitor includes a memory and a set of monitor program instructions stored in the memory;
a maintenance data port coupled to the memory of the network data monitor;
a processor coupled to the maintenance data port and in communication with the network data monitor, the processor to execute the set of monitor program instructions and to evaluate the network data traffic, the set of monitor program instructions comprises program instructions transferred to the memory through the maintenance data port from an external network maintenance station; and
a network configuator in communication with the processor, the network configuator to automatically configure the network apparatus to permit a selected flow of network data through the external network data port in response to instructions received from the processor.
2. The network apparatus of claim 1, wherein the memory of the network data monitor is coupled to the processor to store data and the set of monitor program instructions.
3. The network apparatus of claim 1, wherein the maintenance data port is coupled to an external network maintenance station.
4. The network apparatus of claim 1, wherein the network configuator comprises a set of network configuator program instructions stored in the memory and executed by the processor.
5. The network apparatus of claim 4 wherein the set of network configuator program instructions comprises program instructions transferred to the memory through the maintenance data port from an external network maintenance station.
6. The network apparatus of claim 1, wherein the processor transfers information relating to network data traffic through the maintenance data port to an external network maintenance station.
7. A method for configuring a network switch having an external network data port, a maintenance data port, processor and memory, the method comprising:
monitoring network data traffic on the external network data port;
comparing the network data traffic to a threshold condition; and
automatically configuring the network switch if the network data traffic meets the threshold condition by transferring a set of network configuator program instructions to the memory through the maintenance data port.
8. The method of claim 7, wherein prior to monitoring the network data traffic, the method further comprises transferring a set of monitor program instructions to the memory through the maintenance data port from an external network maintenance station.
9. The method of claim 7, wherein the set of network configuators program instructions are transferred from an external network maintenance station.
10. The method of claim 7 further comprising transferring monitor information about the network data traffic to an external network maintenance station through the maintenance data port.
11. The method of claim 7 wherein automatically configuring of the network switch comprises configuring the network switch in response to instructions received from the processor.
12. The method of claim 7 wherein automatically configuring of the network switch comprises configuring the network switch in response to instructions received from an external network maintenance station through the maintenance data port.
13. A network apparatus comprising:
an external network data port;
a maintenance data port to receive a first set of byte codes;
a java virtual machine configured to receive the first set of byte codes and to convert the first set of byte codes into a first set of instructions for execution by the processor;
a memory in communication with the java virtual machine, the memory to be loaded with (i) the first set of instructions to monitor network data traffic over the external network data port, and (ii) a second set of instructions to automatically configure a flow of network data through the external network data port; and
a processor coupled to the memory, the processor to execute the first set of instructions and the second set of instructions.
14. The network apparatus of claim 13, wherein the maintenance data port receives the first set of byte codes from a network maintenance station.
15. A network apparatus comprising:
an external network data port;
a maintenance data port to receive a set of byte codes from a network maintenance station;
a java virtual machine configured to receive the set of byte codes and convert the set of byte codes into a second set of instructions for execution by the processor;
a memory in communication with the java virtual machine, the memory to be loaded with (i) a first set of instructions to monitor network data traffic over the external network data port, and (ii) the second set of instructions to automatically configure a flow of network data through the external network data port; and
a processor coupled to the memory, the processor to execute the first set of instructions and the second set of instructions.
US09079890 1998-05-15 1998-05-15 Method and apparatus for automatically configuring a network switch Expired - Lifetime US6175868B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09079890 US6175868B1 (en) 1998-05-15 1998-05-15 Method and apparatus for automatically configuring a network switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09079890 US6175868B1 (en) 1998-05-15 1998-05-15 Method and apparatus for automatically configuring a network switch
US09716809 US6850989B1 (en) 1998-05-15 2000-11-20 Method and apparatus for automatically configuring a network switch

Publications (1)

Publication Number Publication Date
US6175868B1 true US6175868B1 (en) 2001-01-16

Family

ID=22153454

Family Applications (2)

Application Number Title Priority Date Filing Date
US09079890 Expired - Lifetime US6175868B1 (en) 1998-05-15 1998-05-15 Method and apparatus for automatically configuring a network switch
US09716809 Active 2020-01-04 US6850989B1 (en) 1998-05-15 2000-11-20 Method and apparatus for automatically configuring a network switch

Family Applications After (1)

Application Number Title Priority Date Filing Date
US09716809 Active 2020-01-04 US6850989B1 (en) 1998-05-15 2000-11-20 Method and apparatus for automatically configuring a network switch

Country Status (1)

Country Link
US (2) US6175868B1 (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6463479B1 (en) * 1997-11-28 2002-10-08 3Com Technologies Apparatus for trunking in stacked communication devices
US6466963B1 (en) * 1998-04-13 2002-10-15 Omron Corporation Agent system with prioritized processing of mobile agents
US6496502B1 (en) * 1998-06-29 2002-12-17 Nortel Networks Limited Distributed multi-link trunking method and apparatus
EP1304624A2 (en) * 2001-10-22 2003-04-23 Quantum Corporation Module and unified network backplane interface for local networks
US20030135589A1 (en) * 2001-12-19 2003-07-17 Toshiba Tec Kabushiki Kaisha Peripheral equipment of computer
US20030179703A1 (en) * 2002-03-02 2003-09-25 Yonatan Aharon Levy Automatic router configuration based on traffic and service level agreements
US6637021B1 (en) * 1999-06-30 2003-10-21 Sun Microsystems, Inc. JavaBean activation framework-common desktop environment bridge
US20030217041A1 (en) * 2002-03-28 2003-11-20 Guiquan Mao Intergated managing method for local area network switching devices
US6807182B1 (en) * 1999-11-02 2004-10-19 3Com Corporation Stacked network devices including a protocol engine and distributed trunk ports and method of operating same
US20050021684A1 (en) * 2003-04-22 2005-01-27 Hong-June Hsue System and method for auto-configuring stackable network devices
US20050034029A1 (en) * 1999-01-29 2005-02-10 Intermec Ip Corp. Remote anomaly diagnosis and reconfiguration of an automatic data collection device platform over a telecommunications network
US20050257215A1 (en) * 1999-09-22 2005-11-17 Intermec Ip Corp. Automated software upgrade utility
US20050274801A1 (en) * 1999-01-29 2005-12-15 Intermec Ip Corp. Method, apparatus and article for validating ADC devices, such as barcode, RFID and magnetic stripe readers
US7143153B1 (en) * 2000-11-09 2006-11-28 Ciena Corporation Internal network device dynamic health monitoring
CN100411345C (en) 2003-03-28 2008-08-13 阿尔卡特公司 Local guarantee management apparatus of equipment parts used in communication network
US7743149B1 (en) * 1999-12-22 2010-06-22 Nortel Networks Limited SIP messages carrying executable computer software code
US7761864B2 (en) 2005-08-09 2010-07-20 Intermec Ip Corp. Method, apparatus and article to load new instructions on processor based devices, for example, automatic data collection devices
US7797367B1 (en) 1999-10-06 2010-09-14 Gelvin David C Apparatus for compact internetworked wireless integrated network sensors (WINS)
US20110080829A1 (en) * 2009-10-05 2011-04-07 Vss Monitoring, Inc. Method, apparatus and system for monitoring network conditions via a stacked topology of network captured traffic distribution devices
WO2012130500A1 (en) * 2011-03-31 2012-10-04 Nec Europe Ltd. A method and system for mutual traffic management and accounting
US8369967B2 (en) 1999-02-01 2013-02-05 Hoffberg Steven M Alarm system controller and a method for controlling an alarm system
US8892495B2 (en) 1991-12-23 2014-11-18 Blanding Hovenweep, Llc Adaptive pattern recognition based controller apparatus and method and human-interface therefore
US8944332B2 (en) 2006-08-04 2015-02-03 Intermec Ip Corp. Testing automatic data collection devices, such as barcode, RFID and/or magnetic stripe readers
US20160062760A1 (en) * 2014-08-27 2016-03-03 Xiaomi Inc. Method and terminal device for complying router management application with router firmware
US9960987B2 (en) 2015-09-01 2018-05-01 Dell Products, Lp System and method for using open source management modules on hardware switch elements

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7095753B1 (en) * 2000-09-19 2006-08-22 Bbn Technologies Corp. Digital network processor-based multi-protocol flow control
US7574597B1 (en) 2001-10-19 2009-08-11 Bbn Technologies Corp. Encoding of signals to facilitate traffic analysis
US7349961B2 (en) * 2001-12-07 2008-03-25 Hitachi, Ltd. Detecting configuration inconsistency in storage networks
US7340513B2 (en) * 2002-08-13 2008-03-04 International Business Machines Corporation Resource management method and system with rule based consistency check
US7469409B2 (en) * 2002-08-13 2008-12-23 International Business Machines Corporation Adaptive resource management method
US8069265B2 (en) * 2005-01-10 2011-11-29 Broadcom Corporation Method and system for network rotameter station and service
US7860026B2 (en) * 2007-03-07 2010-12-28 Hewlett-Packard Development Company, L.P. Network switch deployment
US8296414B1 (en) * 2007-09-28 2012-10-23 Emc Corporation Techniques for automated application discovery
US8125984B2 (en) * 2008-03-21 2012-02-28 International Business Machines Corporation Method, system, and computer program product for implementing stream processing using a reconfigurable optical switch
US8943509B2 (en) * 2008-03-21 2015-01-27 International Business Machines Corporation Method, apparatus, and computer program product for scheduling work in a stream-oriented computer system with configurable networks
US7856544B2 (en) * 2008-08-18 2010-12-21 International Business Machines Corporation Stream processing in super node clusters of processors assigned with stream computation graph kernels and coupled by stream traffic optical links
US8897138B2 (en) * 2013-01-22 2014-11-25 Gigamon Inc. Systems and methods for configuring a network switch appliance

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668857A (en) * 1996-03-29 1997-09-16 Netspeed, Inc. Communication server apparatus and method
US5696764A (en) * 1993-07-21 1997-12-09 Fujitsu Limited ATM exchange for monitoring congestion and allocating and transmitting bandwidth-guaranteed and non-bandwidth-guaranteed connection calls
US5742606A (en) * 1993-12-31 1998-04-21 International Business Machines Corporation Switching apparatus and method for multiple traffic classes
US5832232A (en) * 1996-12-16 1998-11-03 Intel Corporation Method and apparatus for providing user-based flow control in a network system
US5892932A (en) * 1995-11-21 1999-04-06 Fore Systems, Inc. Reprogrammable switching apparatus and method
US5898669A (en) * 1996-03-22 1999-04-27 Shimony; Ilan ATM traffic management device
US5963620A (en) * 1995-07-18 1999-10-05 Jetstream Communications, Inc. Integrated communications control device for a small office configured for coupling within a scalable network including multiple simultaneous call capability
US5982778A (en) * 1996-08-30 1999-11-09 Advanced Micro Devices, Inc. Arrangement for regulating packet flow rate in shared-medium, point-to-point, and switched networks
US5983269A (en) * 1996-12-09 1999-11-09 Tandem Computers Incorporated Method and apparatus for configuring routing paths of a network communicatively interconnecting a number of processing elements

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515376A (en) * 1993-07-19 1996-05-07 Alantec, Inc. Communication apparatus and methods
US6373846B1 (en) * 1996-03-07 2002-04-16 Lsi Logic Corporation Single chip networking device with enhanced memory access co-processor
US6421719B1 (en) * 1995-05-25 2002-07-16 Aprisma Management Technologies, Inc. Method and apparatus for reactive and deliberative configuration management
US6104732A (en) * 1997-10-24 2000-08-15 G-2 Networks, Inc. Integrated signal routing circuit
US6118761A (en) * 1997-12-18 2000-09-12 Advanced Micro Devices, Inc. Apparatus and method for generating rate control frames in a workgroup switch based on traffic contribution from a network switch port

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5696764A (en) * 1993-07-21 1997-12-09 Fujitsu Limited ATM exchange for monitoring congestion and allocating and transmitting bandwidth-guaranteed and non-bandwidth-guaranteed connection calls
US5742606A (en) * 1993-12-31 1998-04-21 International Business Machines Corporation Switching apparatus and method for multiple traffic classes
US5963620A (en) * 1995-07-18 1999-10-05 Jetstream Communications, Inc. Integrated communications control device for a small office configured for coupling within a scalable network including multiple simultaneous call capability
US5892932A (en) * 1995-11-21 1999-04-06 Fore Systems, Inc. Reprogrammable switching apparatus and method
US5898669A (en) * 1996-03-22 1999-04-27 Shimony; Ilan ATM traffic management device
US5668857A (en) * 1996-03-29 1997-09-16 Netspeed, Inc. Communication server apparatus and method
US5982778A (en) * 1996-08-30 1999-11-09 Advanced Micro Devices, Inc. Arrangement for regulating packet flow rate in shared-medium, point-to-point, and switched networks
US5983269A (en) * 1996-12-09 1999-11-09 Tandem Computers Incorporated Method and apparatus for configuring routing paths of a network communicatively interconnecting a number of processing elements
US5832232A (en) * 1996-12-16 1998-11-03 Intel Corporation Method and apparatus for providing user-based flow control in a network system

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8892495B2 (en) 1991-12-23 2014-11-18 Blanding Hovenweep, Llc Adaptive pattern recognition based controller apparatus and method and human-interface therefore
US6463479B1 (en) * 1997-11-28 2002-10-08 3Com Technologies Apparatus for trunking in stacked communication devices
US6801953B2 (en) 1997-11-28 2004-10-05 3Com Corporation Trunking in stacked communication devices
US6466963B1 (en) * 1998-04-13 2002-10-15 Omron Corporation Agent system with prioritized processing of mobile agents
US6496502B1 (en) * 1998-06-29 2002-12-17 Nortel Networks Limited Distributed multi-link trunking method and apparatus
US20050034029A1 (en) * 1999-01-29 2005-02-10 Intermec Ip Corp. Remote anomaly diagnosis and reconfiguration of an automatic data collection device platform over a telecommunications network
US8069369B2 (en) 1999-01-29 2011-11-29 Intermec Ip Corp. Remote anomaly diagnosis and reconfiguration of an automatic data collection device platform over a telecommunications network
US20050274801A1 (en) * 1999-01-29 2005-12-15 Intermec Ip Corp. Method, apparatus and article for validating ADC devices, such as barcode, RFID and magnetic stripe readers
US6857013B2 (en) * 1999-01-29 2005-02-15 Intermec Ip.Corp. Remote anomaly diagnosis and reconfiguration of an automatic data collection device platform over a telecommunications network
US8369967B2 (en) 1999-02-01 2013-02-05 Hoffberg Steven M Alarm system controller and a method for controlling an alarm system
US9535563B2 (en) 1999-02-01 2017-01-03 Blanding Hovenweep, Llc Internet appliance system and method
US6637021B1 (en) * 1999-06-30 2003-10-21 Sun Microsystems, Inc. JavaBean activation framework-common desktop environment bridge
US20050257215A1 (en) * 1999-09-22 2005-11-17 Intermec Ip Corp. Automated software upgrade utility
US7891004B1 (en) * 1999-10-06 2011-02-15 Gelvin David C Method for vehicle internetworks
US9628365B2 (en) 1999-10-06 2017-04-18 Benhov Gmbh, Llc Apparatus for internetworked wireless integrated network sensors (WINS)
US8812654B2 (en) 1999-10-06 2014-08-19 Borgia/Cummins, Llc Method for internetworked hybrid wireless integrated network sensors (WINS)
US20110029644A1 (en) * 1999-10-06 2011-02-03 Gelvin David C Method for Vehicle Internetworks
US8079118B2 (en) 1999-10-06 2011-12-20 Borgia/Cummins, Llc Method for vehicle internetworks
US8140658B1 (en) 1999-10-06 2012-03-20 Borgia/Cummins, Llc Apparatus for internetworked wireless integrated network sensors (WINS)
US7844687B1 (en) 1999-10-06 2010-11-30 Gelvin David C Method for internetworked hybrid wireless integrated network sensors (WINS)
US7797367B1 (en) 1999-10-06 2010-09-14 Gelvin David C Apparatus for compact internetworked wireless integrated network sensors (WINS)
US8832244B2 (en) 1999-10-06 2014-09-09 Borgia/Cummins, Llc Apparatus for internetworked wireless integrated network sensors (WINS)
US8836503B2 (en) 1999-10-06 2014-09-16 Borgia/Cummins, Llc Apparatus for compact internetworked wireless integrated network sensors (WINS)
US7904569B1 (en) 1999-10-06 2011-03-08 Gelvin David C Method for remote access of vehicle components
US8601595B2 (en) 1999-10-06 2013-12-03 Borgia/Cummins, Llc Method for vehicle internetworks
US6807182B1 (en) * 1999-11-02 2004-10-19 3Com Corporation Stacked network devices including a protocol engine and distributed trunk ports and method of operating same
US7743149B1 (en) * 1999-12-22 2010-06-22 Nortel Networks Limited SIP messages carrying executable computer software code
US7143153B1 (en) * 2000-11-09 2006-11-28 Ciena Corporation Internal network device dynamic health monitoring
EP1304624A3 (en) * 2001-10-22 2006-04-05 Quantum Corporation Module and unified network backplane interface for local networks
EP1304624A2 (en) * 2001-10-22 2003-04-23 Quantum Corporation Module and unified network backplane interface for local networks
US20030078997A1 (en) * 2001-10-22 2003-04-24 Franzel Kenneth S. Module and unified network backplane interface for local networks
US7007081B2 (en) * 2001-12-19 2006-02-28 Kabushiki Kaisha Toshiba Peripheral equipment of computer
US20030135589A1 (en) * 2001-12-19 2003-07-17 Toshiba Tec Kabushiki Kaisha Peripheral equipment of computer
US7145871B2 (en) 2002-03-02 2006-12-05 At&T Corp. Automatic router configuration based on traffic and service level agreements
EP1351441A2 (en) * 2002-03-02 2003-10-08 AT&T Corp. Automatic router configuration based on traffic and service level agreements
EP1351441A3 (en) * 2002-03-02 2005-12-14 AT&T Corp. Automatic router configuration based on traffic and service level agreements
US20030179703A1 (en) * 2002-03-02 2003-09-25 Yonatan Aharon Levy Automatic router configuration based on traffic and service level agreements
US20030217041A1 (en) * 2002-03-28 2003-11-20 Guiquan Mao Intergated managing method for local area network switching devices
CN100411345C (en) 2003-03-28 2008-08-13 阿尔卡特公司 Local guarantee management apparatus of equipment parts used in communication network
US20050021684A1 (en) * 2003-04-22 2005-01-27 Hong-June Hsue System and method for auto-configuring stackable network devices
US7305458B2 (en) * 2003-04-22 2007-12-04 Accton Technology Corporation System and method for auto-configuring stackable network devices
US7761864B2 (en) 2005-08-09 2010-07-20 Intermec Ip Corp. Method, apparatus and article to load new instructions on processor based devices, for example, automatic data collection devices
US8944332B2 (en) 2006-08-04 2015-02-03 Intermec Ip Corp. Testing automatic data collection devices, such as barcode, RFID and/or magnetic stripe readers
US20110080829A1 (en) * 2009-10-05 2011-04-07 Vss Monitoring, Inc. Method, apparatus and system for monitoring network conditions via a stacked topology of network captured traffic distribution devices
WO2012130500A1 (en) * 2011-03-31 2012-10-04 Nec Europe Ltd. A method and system for mutual traffic management and accounting
US20160062760A1 (en) * 2014-08-27 2016-03-03 Xiaomi Inc. Method and terminal device for complying router management application with router firmware
US9886259B2 (en) * 2014-08-27 2018-02-06 Xiaomi Inc. Method and terminal device for complying router management application with router firmware
US9960987B2 (en) 2015-09-01 2018-05-01 Dell Products, Lp System and method for using open source management modules on hardware switch elements

Also Published As

Publication number Publication date Type
US6850989B1 (en) 2005-02-01 grant

Similar Documents

Publication Publication Date Title
Sapuntzakis et al. Virtual Appliances for Deploying and Maintaining Software.
Hegering et al. Integrated management of networked systems: concepts, architectures, and their operational application
Thekkath et al. Implementing network protocols at user level
US5867660A (en) Method and apparatus for communicating between a network workstation and an internet
US5606668A (en) System for securing inbound and outbound data packet flow in a computer network
US6675218B1 (en) System for user-space network packet modification
Bos et al. FFPF: Fairly Fast Packet Filters.
US6865735B1 (en) Process for rewriting executable content on a network server or desktop machine in order to enforce site specific properties
US5964836A (en) Apparatus, methods and computer program products for managing web-page-embedded sessions with a host-based application
US20060031407A1 (en) System and method for remote network access
US20040010590A1 (en) System and method for the discovery and usage of local resources by a mobile agent object
US5473608A (en) Method and apparatus for managing and facilitating communications in a distributed heterogeneous network
US5958013A (en) Apparatus, methods and computer program products for conducting a persistent session with a host-based application
Schmidt et al. Object-Oriented Components for High-speed Network Programming.
US5748962A (en) Common channels for inter-application communications
Coulson et al. The design of a QoS-controlled ATM-based communications system in Chorus
US20070050766A1 (en) Method for operating software configured for internet access on a remote computer
Peine et al. The architecture of the Ara platform for mobile agents
US5754830A (en) Server and web browser terminal emulator for persistent connection to a legacy host system and method of operation
US7466713B2 (en) Service processor gateway system and appliance
Tennenhouse et al. Towards an active network architecture
US5463625A (en) High performance machine for switched communications in a heterogeneous data processing network gateway
US6636900B2 (en) Method and apparatus for executing distributed objects over a network
US5596579A (en) High performance machine for switched communications in a heterogeneous data processing network gateway
US20050091388A1 (en) System for managing sessions and connections in a network

Legal Events

Date Code Title Description
AS Assignment

Owner name: BAY NETWORKS, INC., CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LAVIAN, TAL I.;LAU, STEPHEN;ONG, LYNDON Y.;REEL/FRAME:009271/0113

Effective date: 19980610

AS Assignment

Owner name: NORTEL NETWORKS NA INC., CALIFORNIA

Free format text: CHANGE OF NAME;ASSIGNOR:BAY NETWORKS, INC.;REEL/FRAME:010461/0283

Effective date: 19990430

AS Assignment

Owner name: NORTEL NETWORKS CORPORATION, CANADA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NORTEL NETWORKS NA INC.;REEL/FRAME:010547/0891

Effective date: 19991229

AS Assignment

Owner name: NORTEL NETWORKS LIMITED, CANADA

Free format text: CHANGE OF NAME;ASSIGNOR:NORTEL NETWORKS CORPORATION;REEL/FRAME:011195/0706

Effective date: 20000830

Owner name: NORTEL NETWORKS LIMITED,CANADA

Free format text: CHANGE OF NAME;ASSIGNOR:NORTEL NETWORKS CORPORATION;REEL/FRAME:011195/0706

Effective date: 20000830

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: CITIBANK, N.A., AS ADMINISTRATIVE AGENT,NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNOR:AVAYA INC.;REEL/FRAME:023892/0500

Effective date: 20100129

Owner name: CITIBANK, N.A., AS ADMINISTRATIVE AGENT, NEW YORK

Free format text: SECURITY AGREEMENT;ASSIGNOR:AVAYA INC.;REEL/FRAME:023892/0500

Effective date: 20100129

AS Assignment

Owner name: CITICORP USA, INC., AS ADMINISTRATIVE AGENT,NEW YO

Free format text: SECURITY AGREEMENT;ASSIGNOR:AVAYA INC.;REEL/FRAME:023905/0001

Effective date: 20100129

Owner name: CITICORP USA, INC., AS ADMINISTRATIVE AGENT, NEW Y

Free format text: SECURITY AGREEMENT;ASSIGNOR:AVAYA INC.;REEL/FRAME:023905/0001

Effective date: 20100129

AS Assignment

Owner name: AVAYA INC.,NEW JERSEY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NORTEL NETWORKS LIMITED;REEL/FRAME:023998/0878

Effective date: 20091218

Owner name: AVAYA INC., NEW JERSEY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NORTEL NETWORKS LIMITED;REEL/FRAME:023998/0878

Effective date: 20091218

SULP Surcharge for late payment

Year of fee payment: 11

FPAY Fee payment

Year of fee payment: 12

AS Assignment

Owner name: CITIBANK, N.A., AS ADMINISTRATIVE AGENT, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNORS:AVAYA INC.;AVAYA INTEGRATED CABINET SOLUTIONS INC.;OCTEL COMMUNICATIONS CORPORATION;AND OTHERS;REEL/FRAME:041576/0001

Effective date: 20170124

AS Assignment

Owner name: AVAYA INC., CALIFORNIA

Free format text: BANKRUPTCY COURT ORDER RELEASING ALL LIENS INCLUDING THE SECURITY INTEREST RECORDED AT REEL/FRAME 023892/0500;ASSIGNOR:CITIBANK, N.A.;REEL/FRAME:044891/0564

Effective date: 20171128

Owner name: OCTEL COMMUNICATIONS LLC (FORMERLY KNOWN AS OCTEL

Free format text: BANKRUPTCY COURT ORDER RELEASING ALL LIENS INCLUDING THE SECURITY INTEREST RECORDED AT REEL/FRAME 041576/0001;ASSIGNOR:CITIBANK, N.A.;REEL/FRAME:044893/0531

Effective date: 20171128

Owner name: VPNET TECHNOLOGIES, INC., CALIFORNIA

Free format text: BANKRUPTCY COURT ORDER RELEASING ALL LIENS INCLUDING THE SECURITY INTEREST RECORDED AT REEL/FRAME 041576/0001;ASSIGNOR:CITIBANK, N.A.;REEL/FRAME:044893/0531

Effective date: 20171128

Owner name: AVAYA INTEGRATED CABINET SOLUTIONS INC., CALIFORNI

Free format text: BANKRUPTCY COURT ORDER RELEASING ALL LIENS INCLUDING THE SECURITY INTEREST RECORDED AT REEL/FRAME 041576/0001;ASSIGNOR:CITIBANK, N.A.;REEL/FRAME:044893/0531

Effective date: 20171128

Owner name: AVAYA INC., CALIFORNIA

Free format text: BANKRUPTCY COURT ORDER RELEASING ALL LIENS INCLUDING THE SECURITY INTEREST RECORDED AT REEL/FRAME 041576/0001;ASSIGNOR:CITIBANK, N.A.;REEL/FRAME:044893/0531

Effective date: 20171128

AS Assignment

Owner name: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT, NEW Y

Free format text: SECURITY INTEREST;ASSIGNORS:AVAYA INC.;AVAYA INTEGRATED CABINET SOLUTIONS LLC;OCTEL COMMUNICATIONS LLC;AND OTHERS;REEL/FRAME:045034/0001

Effective date: 20171215

AS Assignment

Owner name: SIERRA HOLDINGS CORP., NEW JERSEY

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CITICORP USA, INC.;REEL/FRAME:045045/0564

Effective date: 20171215

Owner name: AVAYA, INC., CALIFORNIA

Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CITICORP USA, INC.;REEL/FRAME:045045/0564

Effective date: 20171215

AS Assignment

Owner name: CITIBANK, N.A., AS COLLATERAL AGENT, NEW YORK

Free format text: SECURITY INTEREST;ASSIGNORS:AVAYA INC.;AVAYA INTEGRATED CABINET SOLUTIONS LLC;OCTEL COMMUNICATIONS LLC;AND OTHERS;REEL/FRAME:045124/0026

Effective date: 20171215